What is CVE-2022-22757?

CVE-2022-22757 is a medium-severity vulnerability in Mozilla Firefox, classified under Origin Validation Error. CVSS score: 6.5/10. Published 2022-12-22.

How severe is CVE-2022-22757?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Mozilla Firefox

CVE-2022-22757

Remote Agent, used in WebDriver, did not validate the Host or Origin headers. This could have allowed websites to connect back locally to the user's browser to control it. <br>*This bug only affected Firefox when WebDriver was enabled, which is not the default configuration.*. This vulnerability affects Firefox < 97.

EPSS: 0.002 (14.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

References

security@mozilla.org (Vendor Advisory)
security@mozilla.org (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2022-22757?: CVE-2022-22757 is a medium-severity vulnerability in Mozilla Firefox, classified under Origin Validation Error. CVSS score: 6.5/10. Published 2022-12-22.
How severe is CVE-2022-22757?: Medium severity. CVSS v3 base score is 6.5 out of 10.